ICD-10-CM 2027
ICD-10 code for atrophicus lichen
From the official ICD-10-CM alphabetic index entry “Lichen › atrophicus”. Page updated September 29, 2026.
About coding atrophicus lichen
The ICD-10-CM code for atrophicus lichen is L90.0 (Lichen sclerosus et atrophicus). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on L90.0.
Within L90 (atrophic disorders of skin), L90.0 is specifically for lichen sclerosus et atrophicus. Related codes cover Anetoderma of Schweninger-Buzzi (L90.1), Anetoderma of Jadassohn-Pellizzari (L90.2), Atrophoderma of Pasini and Pierini (L90.3), acrodermatitis chronica atrophicans (L90.4), scar conditions and fibrosis of skin (L90.5), Striae atrophicae (L90.6), other atrophic disorders of skin (L90.8) and atrophic disorder of skin, unspecified (L90.9).
The conditions in its Excludes2 note aren't part of L90.0, but may be coded alongside it if the patient has both: lichen sclerosus of external female genital organs (N90.4) and lichen sclerosus of external male genital organs (N48.0).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific atrophicus lichen codes (official index)
Common questions about atrophicus lichen ICD-10 codes
What is the ICD-10 code for atrophicus lichen?
- L90.0 — Lichen sclerosus et atrophicus. More specific codes apply when the documentation supports them: N48.0, N90.4.
What is the ICD-10 code for penis atrophicus lichen?
- N48.0 — Leukoplakia of penis.
What is the ICD-10 code for vulva atrophicus lichen?
- N90.4 — Leukoplakia of vulva.
Is L90.0 billable?
- Yes. L90.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can L90.0 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict L90.0 as a principal diagnosis.
Is L90.0 a CC or MCC?
- No. L90.0 is neither a CC nor an MCC under MS-DRG v44.0.